• 제목/요약/키워드: material recognition

검색결과 468건 처리시간 0.026초

A study on the analytical procedures using artificial intelligence methods

  • Han, In-Goo;Youn, Sung-Jun
    • 한국경영과학회:학술대회논문집
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    • 한국경영과학회 1997년도 추계학술대회발표논문집; 홍익대학교, 서울; 1 Nov. 1997
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    • pp.109-112
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    • 1997
  • In this study, we attempt to improve analytical methods in auditing by applying Artificial Intelligence(AI) methods including Artificial Neural Networks(ANN) and Case-Based Reasoning(CBR), and to perform pattern recognition of the investigation signals generated by analytical procedures. Five years of audited financial data from a large-sized firm were used to calculate four commonly applied financial ratios. This exploratory study shows that the use of AI methods to analyze patterns of related fluctuations across numerous financial ratios provides improved performance in recognizing material misstatements within the financial accounts.

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물류관리에 있어 동적계획법을 이용한 수송시스템 설계 (Design of Transportation System Using Dynamic Programming in Logistic Management)

  • 하정진;이병호
    • 산업경영시스템학회지
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    • 제18권34호
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    • pp.129-137
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    • 1995
  • Recently the recognition of Logistics becomes important to enterprises as a means for improving their competition, but the Korea enterpries falls for far behind in management techniques for analyzing realities and problems in the logistic compare to the advanced countries. In describing a distribution network, we have stated that it is basically a system or a set of locations that ship, receive or store material plus the routes that connect these locations. Using a Dynamic Programming on logistics, we can decrease the inventory level and increase the service level on logistics and the management performance.

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A MOLECULAR SIMULATION STUDY ON BETA-CYCLODEXTRIN POLYMERIC MEMBRANES

  • Tocci, Elena;Fama, Angelo;Perrone, Maria Pia;Russo,Nino;Drioli, Enrico
    • 한국막학회:학술대회논문집
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    • 한국막학회 2003년도 The 4th Korea-Italy Workshop
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    • pp.57-59
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    • 2003
  • Molecular dynamics simulations have been performed on $\beta$-cyclodextrins octyl-derivative (b-CD) encapsulated into a polymer matrix of glassy poly(ether ether ketone) (PEEK-WC) material to investigate the effects of the complexation of p-nitrophenilacetate and naringin molecules with the aim to study the recognition properties of b-CD.

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다이빙용 웨트수트(wetsuit) 소재에 대한 소비자 인식조사와 물성 비교 (Consumer recognition and mechanical property comparison of wetsuit material for diving)

  • 상정선;오경화
    • 한국의상디자인학회지
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    • 제20권4호
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    • pp.163-174
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    • 2018
  • Consumer and property evaluation of wetsuit materials were conducted to obtain useful data for developing competitive products that meet consumer expectations and improving industrial competitiveness. Data were collected through online surveys of 213 domestic consumers who have experienced wearing wetsuit among marine leisure activities. Five types of commercial wet suit materials by brand and four types of commercial wet suit materials with the same quality by thickness were collected. Then, their physical properties, salt water resistance and thermal insulation rate were evaluated and compared. As a result, the most commonly used wetsuit material is 3 to 5 mm thick, and the basic jersey material is bonded on both sides. As a processing for imparting functionality, processing for improving warmth and reducing surface resistance are most frequently used. Consumers often feel uncomfortable when wearing a wetsuit, such as wearing comfort, weight, ease of movement, stretchability, and clothing pressure, which are different from those of casual wear. Also, mechanical strength and warmth were considered to be the most important criteria for selection of wetsuit material for purchase or rental. The mechanical properties of brand A and B were better than those of brand C, D, and E. Resilience and thermal shrinkage were better in brand C, D, and E. On the other hand, there was no significant difference in the physical properties due to the difference in thickness of the material at the same quality. Also, it was found that the thicker the material, the more stable it is in the heat. Brand A and B had superior salt water resistance than brand C, D, and E. In the thermal insulation test, brand A and B showed better insulation characteristics than brand C, D, and E, but the types of bonded fabric and surface finishing of materials were thought to have affected. In comparison of the thickness, the thicker the materials, the better the salt resistance and the thermal insulation.

식용작물재배 LED 등기구 모듈개발

  • 송용종;최현호;이문호;김영표;이호식;송민종;김태완
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2009년도 추계학술대회 논문집
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    • pp.284-284
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    • 2009
  • The LED of cultivation edible plants was compliance the variable of the photo-receptor pigment with the red light source and ultra red light source from long wave region. The mechanism of cultivation edible plants for each part was necessary the wavelength unit which is appropriate, the illuminant source, motor control and lens design of LED light source about plant. The photo-receptor pigment induces for a long daytime recognition, seed germination and anthesis etc, induction years exists in the state which is an inactivity within the cells and in compliance with the red light source to be converted in active

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음성신호의 압축원리를 이용한 사운드 마스킹 효과로 음향 환경 최적화 (Optimize the Acoustic Environment Using a Sound Masking Effects of the Audio Signal Compression Principle)

  • 안숙향
    • 한국전기전자재료학회논문지
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    • 제28권11호
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    • pp.748-751
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    • 2015
  • Sound Masking System technology as by sound the same on all bands and artificially generates a constant sound shield People want to hear or recognize the people with the noise generated from the interior of the way. Prevent hearing or prevent recognition by using the technology to control the audible frequency band Continue to emit constant and uniform shielding sound audible frequency band Even the security content of speech (20 Hz~20 KHz). That interception laser eavesdropping, internal solicitations, during recording Or delay the decoding was a result of the effect of interference calculated Experience noise disturbance index is applied around the Stress Index is the average index is 10.16 was a luxury for the average index is then applied to the index 3.07 Noise is significantly lower stress level has improved noise conditions.

의류소재 이미지 분류에 따른 직물 특성 연구 (A Study of Fabric Properties for Classified on Apparel Material Image)

  • 박기윤
    • 한국의상디자인학회지
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    • 제3권1호
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    • pp.15-31
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    • 2001
  • Textile fabrication affected by consumer and selected by fashion designer. The textile fabrication has been made not only by introducing the newly developed fiber but also by modifying the existing textile materials to impart sensibility to them. Consumers choose but to their sensibility of textile material and fashion trend. On purpose in this research is find out have influence on textile image. Wool fabrics have been in use from early age in northern Europe. Recognition of the role of the morphological structure, surface properties, chemical composition, acid-base characteristics in the chemical treatment of wool led to quantum advances in the fields of setting, shrink-resisting, chemical modification, and internal fiber cross-linking. Mechanical finishing to develop the handle, drape, and surface characteristics of the fabric is at least as important as chemical or wet finishing. Result showed that to have variety sensibility and trend theme in wool fabrics are tweed, venetian, serge, gabardine and melton.

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UHF 가술을 이용한 온라인 PD 모니터링 (On-line PD Monitoring Using UHF Technique)

  • 최용성;이경섭
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2008년도 춘계학술대회 논문집 센서 박막재료연구회 및 광주 전남지부
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    • pp.115-118
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    • 2008
  • A field-oriented UHF system for on-line PD monitoring of transformers. is designed, which has been installed inside the oil tank of a transformer by two ways: on-line installing mode through the oil-valve and pre-installing mode through the man hole/hand hole cover. This system has successfully captured long intermittent discharge signals that hadn't been detected through conventional techniques, and solved the problem successfully. The results demonstrate that UHF technique has great advantages for on-line PD monitoring of transformers. By adopting the peak detection technique, it becomes easy and effective for the transplantation of the phase-resolved pattern recognition technique from conventional method to UHF method, and then to realize continuous on-line monitoring, source characterization and trending analysis.

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소수성 상호작용을 이용한 고집적 DNA칩 마이크로어레이의 개발 (Development of High-Intergrated DNA Chip Microarrays by Using Hydrophobic Interaction)

  • 김도균;최용성;권영수
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2001년도 하계학술대회 논문집
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    • pp.757-760
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    • 2001
  • We have used the random fluidic self-assembly (RFSA) technique based on the chip pattern of hydrophobic self-assembly layers to assemble microfabricated particles onto the chip pattern. Immobilization of DNA, fabrication of the particles and the chip pattern, arrangement of the particles on the chip pattern, and recognition of each using DNA fluorescence measurement were carried out. Establishing the walls, the arrangement stability of the particles was improved. Each DNA is able to distinguish by using the lithography process on the particles. Advantages of this method are process simplicity, wide applicability and stability. It is thought that this method can be applicable as a new fabrication technology to develop a minute integration type biosensor microarray.

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절연파괴 예측을 위한 트리방전의 영상처리에 관한 연구 (A Study on Image Processing of Tree Discharges for Insulation Destructive Prediction)

  • 오무송;김태성
    • 한국전기전자재료학회논문지
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    • 제14권1호
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    • pp.26-33
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    • 2001
  • The proposed system was composed of pre-processor which was executing binary/high-pass filtering and post-processor which ranged from statistic data to prediction. In post-processor work, step one was filter process of image, step two was image recognition, and step three was destruction degree/time prediction. After these processing, we could predict image of the last destruction timestamp. This research was produced variation value according to growth of tree pattern. This result showed improved correction, when this research was applied image Processing. Pre-processing step of original image had good result binary work after high pas- filter execution. In the case of using partial discharge of the image, our research could predict the last destruction timestamp. By means of experimental data, this prediction system was acquired $\pm$3.2% error range.

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